| Greenbelt to Oststeinbek | 4,007.74 mi (6,449.84 km) |
| Greenbelt to Ottendorf-Okrilla | 4,217.52 mi (6,787.45 km) |
| Greenbelt to Ottersberg | 3,981.56 mi (6,407.70 km) |
| Greenbelt to Ottobrunn | 4,230.95 mi (6,809.05 km) |
| Greenbelt to Ottweiler | 4,007.23 mi (6,449.02 km) |
| Greenbelt to Overath | 3,968.37 mi (6,386.48 km) |
| Greenbelt to Oyten | 3,977.59 mi (6,401.31 km) |
| Greenbelt to Paderborn | 4,004.55 mi (6,444.71 km) |
| Greenbelt to Papenburg | 3,915.50 mi (6,301.39 km) |
| Greenbelt to Parchim | 4,073.82 mi (6,556.17 km) |
| Greenbelt to Pasewalk | 4,151.70 mi (6,681.52 km) |
| Greenbelt to Passau | 4,287.44 mi (6,899.97 km) |
| Greenbelt to Pattensen | 4,028.43 mi (6,483.13 km) |
| Greenbelt to Pegnitz | 4,172.79 mi (6,715.45 km) |
| Greenbelt to Peine | 4,044.87 mi (6,509.59 km) |
